Updated the lcdtool to version 0.0.3.

[bluetank/bluetank.git] / soft / utils / lcdtool / lcdfont.c

diff --git a/soft/utils/lcdtool/lcdfont.c b/soft/utils/lcdtool/lcdfont.c
new file mode 100644 (file)
index 0000000..165ac62
--- /dev/null
+++ b/soft/utils/lcdtool/lcdfont.c
@@ -0,0 +1,144 @@
+/**
+ * @file lcdfont.c
+ * @author Copyright(C) 2012 Shinichiro Nakamura
+ */
+
+/*
+ * ===============================================================
+ *  LCD Image Tool
+ * ===============================================================
+ * Copyright (c) 2012 Shinichiro Nakamura
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ * ===============================================================
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "lcdimg.h"
+#include "lcdfont.h"
+#include "util.h"
+
+#define CODE_MIN    (0x00)
+#define CODE_MAX    (0xFF)
+
+#define CHAR_OFF    '.'
+#define CHAR_ON     'o'
+#define CHAR_DEF    '='
+
+static int pickup_code(const char *text)
+{
+    char key[BUFSIZ];
+    char value[BUFSIZ];
+    char tmp[BUFSIZ];
+    int i;
+
+    /*
+     * Copy the master data to a temporary variable.
+     */
+    strcpy(tmp, text);
+
+    /*
+     * Separate the key and value.
+     */
+    for (i = 0; i < (int)strlen(tmp); i++) {
+        if (tmp[i] == CHAR_DEF) {
+            tmp[i] = ' ';
+        }
+    }
+
+    /*
+     * Pickup the value.
+     */
+    if (sscanf(tmp, "%s %s", key, value) == 2) {
+        if (strcmp("CODE", key) == 0) {
+            int n;
+            if (sscanf(value, "0x%02x", &n) == 1) {
+                return n;
+            }
+            return -1;
+        }
+    }
+
+    return -1;
+}
+
+int lcdfont_read(const char *filename, LCDFONT_READ_CALLBACK callback, void *extobj)
+{
+    char buf[BUFSIZ];
+    FILE *fp;
+    int code = -1;
+    int y = 0;
+
+    /*
+     * Check the file name.
+     */
+    if (filename == NULL) {
+        return -1;
+    }
+    if (strlen(filename) == 0) {
+        return -1;
+    }
+
+    /*
+     * Open the target file.
+     */
+    fp = fopen(filename, "r");
+    if (fp == NULL) {
+        return -1;
+    }
+
+    /*
+     * Read the font data.
+     */
+    while (fgets(buf, sizeof(buf), fp) != NULL) {
+        int tmp;
+        util_remove_comment(buf);
+        tmp = pickup_code(buf);
+        if ((CODE_MIN <= tmp) && (tmp <= CODE_MAX)) {
+            code = tmp;
+        } else {
+            if (FONT_X < strlen(buf)) {
+                int x;
+                for (x = 0; x < FONT_X; x++) {
+                    if ((CODE_MIN <= code) && (code <= CODE_MAX)) {
+                        callback(code, x, y, (buf[x] == CHAR_OFF) ? 0 : 1, extobj);
+                    }
+                }
+                y++;
+                if (FONT_Y <= y) {
+                    y = 0;
+                    code = -1;
+                }
+            }
+        }
+    }
+
+    /*
+     * Close the target file.
+     */
+    fclose(fp);
+
+    return 0;
+}
+